USC linebacker Kaluka Maiava gets by Marc Tyler during pass protection drills.
USC linebacker Brian Cushing tries to bring down Marc Tyler during 11-on-11.
USC fullback Jody Adewale breaks off a big run.
USC reserve quarterback Michael McDonald calls an audible at the line of scrimmage.
Michael McDonald looks over the defense before the snap.
USC cornerback Cary Harris goes up high to intercept Aaron Corp's pass.
Alfred Rowe bounces outside for a nice gain.
Big Sedrick Ellis can't keep up with Aaron Corp.
Marc Tyler had another good performance on Thursday.
Jody Adewale fights off a tackler.
USC linebacker Clay Mathews had fun sacking running backs coach Todd
McNair during Thursday's practice. The good natured McNair sprung to his feet
with a huge grin.